Solvent-dependent fluorescence behaviour of imide-fused [n]phenacenes (n = 3, 5, 7)

Keito Nose, Kaito Yoshioka, Minoru Yamaji, Fumito Tani, Kenta Goto, Hideki Okamoto

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Imide-fused [n]phenacenes (nPDIs, n = 3, 5, 7) were systematically synthesised and their electronic features were investigated by electrochemical and electronic spectral measurements. nPDIs showed two reduction waves attributed to formation of radical ions and dianions. 3PDI produced blue fluorescence independent of solvent polarity. In contrast, 5PDI and 7PDI displayed marked positive solvatofluorochromism due to intramolecular charge transfer characters between the imide moieties and phenacene p cores in the excited state. The spectral features were analyzed by the Lippert-Mataga relationship and theoretical calculations.

Original languageEnglish
Pages (from-to)4096-4101
Number of pages6
JournalRSC Advances
Issue number6
Publication statusPublished - Jan 30 2023

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Chemical Engineering


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